July weather forecast
Selfoss, Iceland

July

Weather in July

July holds the title of being the warmest month of the year in Selfoss, with the highest average temperature reaching a comfortable 13.8°C (56.8°F). Despite not being the driest, the amount of rainfall is reasonable and does not have a significant impact on outdoor activities. The summer sunshine combined with moderate temperatures create an ideal climate for sightseeing. The reduction in wind speeds, when compared to the winter months, adds to the pleasant weather conditions. This month also brings the longest daylight hours of the year.

Temperature

July temperatures tend to peak at an average high of 13.8°C (56.8°F) and dip to a low of 8.9°C (48°F).

Humidity

The average relative humidity in July is 78%.

Rainfall

In Selfoss, in July, during 19.7 rainfall days, 60mm (2.36") of precipitation is typically accumulated. Throughout the year, there are 208.7 rainfall days, and 1105mm (43.5") of precipitation is accumulated.

Snowfall

June through September are months without snowfall.

Daylight

In Selfoss, the average length of the day in July is 19h and 28min.
On the first day of July, sunrise is at 03:08 and sunset at 23:47. On the last day of the month, sunrise is at 04:32 and sunset at 22:28 GMT.

Sunshine

In July, the average sunshine is 7.4h.

UV index

July is the month with the highest UV index, with an average maximum UV index of 4. A UV Index reading of 3 to 5 represents a medium vulnerability from unprotected exposure to Sun's UV rays for average individuals.
Note: The daily maximum UV index of 4 in July interprets into the following advice:
Undertake protective steps - Obligation to safeguard skin and eyes from harm is in place. Avoid the Sun's strongest UV rays by seeking shade and limiting exposure during midday. Equip yourself with UVA and UVB-filtering sunglasses on clear, sunny days.

Frequently asked questions

What time of the year is the hottest?
July is the month when Selfoss experiences its warmest temperatures, averaging a high of 13.8°C (56.8°F) and a low of 8.9°C (48°F).
What is the usual temperature for Selfoss in July?
Selfoss in July has an average high-temperature of 13.8°C (56.8°F) and an average low-temperature of 8.9°C (48°F).
What is the average humidity in July?
In Selfoss, the average relative humidity in July is 78%.
How many days does it rain in July?
In July, the rain falls for 19.7 days. Throughout July, 60mm (2.36") of precipitation is accumulated.
When it does not snow?
June through September are months without snowfall.
How many hours of daylight does Selfoss have in July?
In Selfoss, the average day length in July is 19h and 28min.
When are sunrise and sunset in July?
On the first day of July, sunrise is at 03:08 and sunset at 23:47. On the last day of the month, sunrise is at 04:32 and sunset at 22:28 GMT.
How long on average sun shines in July?
In July, the average sunshine duration is 7.4h.
What is the month with the highest UV index?
The month with the highest UV index is July, with an average maximum UV index of 4.
How high is the UV index in July?
In July, the average daily maximum UV index is 4. A UV Index estimate of 3 to 5 represents a moderate health threat from unsafe exposure to Sun's UV rays.
Average high temperature
Average low temperature
Average wind speed
Average max. wind speed
Average wind speed gusts
Average humidity
Average rainfall
Average rainfall days
Average snowfall
Average snowfall days
Average daylight
Average sunshine
Average sunshine days
Average UV index
Average cloud cover
Average visibility
Average temperature in July - Selfoss, Iceland
Average temperature in July
Selfoss, Iceland
  • Average high temperature in July: 13.8°C

The warmest month (with the highest average high temperature) is July (13.8°C).
The month with the lowest average high temperature is December (1.5°C).

  • Average low temperature in July: 8.9°C

The month with the highest average low temperature is July (8.9°C).
The coldest month (with the lowest average low temperature) is December (-1.9°C).

Average pressure in July - Selfoss, Iceland
Average pressure in July
Selfoss, Iceland
  • Average pressure in July: 1009.4mbar

The month with the highest atmospheric pressure is June (1013.8mbar).
The month with the lowest atmospheric pressure is January (996.8mbar).

Average wind speed in July - Selfoss, Iceland
Average wind speed in July
Selfoss, Iceland
  • Average wind speed in July: 14.7km/h

The windiest month (with the highest average wind speed) is February (24.8km/h).
The calmest month (with the lowest average wind speed) is July (14.7km/h).

Average humidity in July - Selfoss, Iceland
Average humidity in July
Selfoss, Iceland
  • Average humidity in July: 78%

The months with the highest relative humidity are January and September (82%).
The month with the lowest relative humidity is May (74%).

Average rainfall in July - Selfoss, Iceland
Average rainfall in July
Selfoss, Iceland
  • Average rainfall in July: 60mm

The wettest month (with the highest rainfall) is January (142mm).
The driest month (with the least rainfall) is June (45mm).

Average rainfall days in July - Selfoss, Iceland
Average rainfall days in July
Selfoss, Iceland
  • Average rainfall days in July: 19.7 days

The month with the highest number of rainy days is April (19.9 days).
The month with the least rainy days is December (14.3 days).

Average snowfall in July - Selfoss, Iceland
Average snowfall in July
Selfoss, Iceland
  • Average snowfall in July: 0mm

The month with the highest snowfall is March (220mm).
The months with the least snowfall are June, July, August and September (0mm).

Average snowfall days in July - Selfoss, Iceland
Average snowfall days in July
Selfoss, Iceland
  • Average snowfall days in July: 0 days

The month with the highest number of snowfall days is March (13.3 days).
The months with the least snowfall days are July, August and September (0 days).

Average daylight in July / Average sunshine in July - Selfoss, Iceland
Average daylight in July /
Average sunshine in July
Selfoss, Iceland
  • Average daylight in July: 19h and 3min

The month with the longest days is June (Average daylight: 20h and 42min).
The month with the shortest days is December (Average daylight: 4h and 30min).

  • Average sunshine in July: 7h and 2min

The month with the most sunshine is August (Average sunshine: 7h and 48min).
The month with the least sunshine is January (Average sunshine: 2h and 24min).

Average sunshine days in July - Selfoss, Iceland
Average sunshine days in July
Selfoss, Iceland
  • Average sunshine days in July: 8.7 days

The month with the most sunshine days is June (12.3 days).
The month with the least sunshine days is January (5.5 days).

Average UV index in July - Selfoss, Iceland
Average UV index in July
Selfoss, Iceland
  • Average UV index in July: 4

The month with the highest UV index is July (UV index 4).
The month with the lowest UV index is November (UV index 1).

Average cloud cover in July - Selfoss, Iceland
Average cloud cover in July
Selfoss, Iceland
  • Average cloud cover in July: 61

The month with the most cloud cover is March (Cloud cover 67).
The months with the least cloud cover are May and August (Cloud cover 59).

Average visibility in July - Selfoss, Iceland
Average visibility in July
Selfoss, Iceland
  • Average visibility in July: 9km

The month with the highest visibility is June (10km).
The months with the lowest visibility are January, February and March (8km).

englishespañol中文
Share